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World of Software > News > One of UK’s biggest mobile networks shuts service tomorrow cutting OFF data
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One of UK’s biggest mobile networks shuts service tomorrow cutting OFF data

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Last updated: 2025/08/03 at 3:02 AM
News Room Published 3 August 2025
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A MAJOR network provider with millions of customers continues a massive service switch off in just hours.

Those affected won’t be able to use the internet when they’re out and about unless they upgrade their phone.

1

O2 is the last of the big networks to shut down its 3GCredit: Alamy

O2 has been pressing on with plans to shut down its old 3G network technology.

The other main networks – EE, Vodafone and Three – have already got rid of theirs, as part of a joint agreement made with the Government in 2021.

O2’s 3G switch off has already gone ahead in Durham, Norwich, Telford and Guildford.

But now Torquay is the next spot to lose 3G.

The move not only affects O2, but also other firms that run off its masts, including Giffgaff, Tesco Mobile and Sky Mobile.

For most customers it won’t make any difference – if anything it’ll make space for more faster 4G and 5G kit.

But some older smartphones may not be 4G or 5G compatible.

While they’ll still be able to make calls and send texts, they no longer get access to data.

Virgin Media O2’s 3G network carries less than 2 per cent of all network data now.

The operator is already writing directly to all customers currently without a 4G or 5G handset, offering free compatible devices for known vulnerable customers and discounts on new handsets for all others.

O2 Ends Pay-As-You-Go Data and iPad SIM Services: What You Need to Know

Bosses have also announced that they’re working with charity Age UK to help raise awareness and support.

“The 3G switch-off may feel daunting for many older people so it’s important that we do all we can to support those affected,” said Caroline Abrahams, Charity Director at Age UK.

“We’re very grateful for this funding from Virgin Media O2 as this will enhance our services, including our Advice Line, so that older customers can get the help needed when 3G is switched off.

“It’s important to note that for those using a 3G network who don’t wish to change their handset, for now they will still be able to make phone calls and send texts as they do today – it’s just their mobile data this change will affect.

“Anyone who is feeling worried and would like some support can get in touch with their provider to find out more about their options and make sure they are ready for the change, or they can call Age UK’s Advice Line for free on 0800 169 65 65.”

Which mobile networks are affected by the 3G switch off?

Mobile networks affected by O2’s 3G switch off:

-O2
– Tesco Mobile
– Sky Mobile
– GiffGaff

Networks which have already switched off 3G:

– Vodafone
– Asda Mobile
– Lebara
– Talk Mobile
– Voxi

– EE
– 1pMobile
– Ecotalk
– IQ Mobile
– Lycamobile
– Mozillion
– RWG Mobile
– Spusi
– Talk Home
– Utility Warehouse
– Your Co-op
– Three
– iD Mobile, Smarty
– Honest Mobile
– Superdrug

How to check if your device is affected

Smartphones bought in the last 10 years are unlikely to be affected by the switch off.

However, if you are still unsure, you can do a simple trick to check.

Click on the settings page on your phone and search for Network Mode or Preferred Network.

If you spot 4G or 5G listed, then you will be unaffected by the switch off.

IS THE SWITCH OFF THAT BIG OF A DEAL?

Analysis by Jamie Harris, Assistant Technology and Science Editor at The Sun

It’s unclear exactly how many people will be affected by the 3G switch off.

There wasn’t much noise after Three, EE and Vodafone ended 3G.

So, there will undoubtedly be some still using 3G-only phones but the numbers are probably very small.

Just because it may be a small figure doesn’t mean those people should be cast aside, especially if they’re not very tech-savvy or vulnerable.

So definitely get in contact with O2 (or GiffGaff and Tesco Mobile) if you need support, or Age UK.

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